Bruno mttller



(No Model.) I,

.B. MULLER.

. COOLER FOR MILK. No. 249,386. Patented Nov. 8, 1 881.

fzrnlb 14417195 J Nv PEYERS. Plmifl-lilhugraphln Wmhington, D. Q

UNITED STATES PATENT OFFICE.

BRUNO MULLER,0F ZWENKAU, SAXONY, GERMANY.

COOLER-FOR MILK.

SPECIFICATION formingpart of Letters Patent No. 249,386, dated November 8, 1881.

Application filed April 23, 1881. (No model.)

To all whom it may concern Be it known that I, BRUNO Mi'ILLEIaof the city of Zwenkau, in Saxony, German Empire, have invented a new and Improved Cooler for Milk or other Fluids, of which the followingis a specification. This invention consists in the construction of a cooling apparatust'or fluids, capable of having the space betweenthe cooling-surfaces increased or diminished, as may be desired, and which can be readily taken apart for the purpose of cleaning, which latter circumstance is particularly of great consequence if the apparatus is'employed for cooling milk.

In the accompanying drawings, Figure 1 represents an outside elevation of my cooling apparatus. Fig. 2 is a vertical section of the same. Fig. 3 is a plan or top view. Fig. 4 is a vertical section of the cooling-chambers, and Figs. 5 and 6 are details.

Similar letters represent similar parts in all the figures.

of india-rubber or any other suitable A A are flat hollow cooling'cb embers of any desired width, ben t in a zigzag shape, asshown in Fig. 2, fitted between side plates, G G,

against which a tightjoint is made by means packing, and fastened together through bolts] l. The

. water or other cooling medium is introduced through pipes at a,

into the i-nterior'of these chambers A and A and escapes through pipes m m, orvice vcrsa. To cause this water or cooling medium to circulate in a horizontal direction plates or partitions g g are arranged in l 35.

the corners where the chamber-plates are bent, and arranged alternately on one or the other side, as shown in Fig. 4. By this arrangement I the sides of the chambers A A are braced and i at the same time strengthened. 1 4

The chamber A" is made stationary,and theohamber A is at its upper end provided with a cross-bar, d,

resting upon the frame F, and at its lower end .the purpose of cleaning the inner'surfaces or space, B. i The milk or other fluid to be cooled is collected in the reservoir t) and passes through the faucet a into the trough D, provided with perforations i in its bottom-and thus runs into the space E in the upper end between the cooler-chambers A A, and then passes the inclined surfaces of the coolers in athickor thin body, according to the position of these coolers A A from each other. After passing through the apparatus the milk or other fluid runs into the trough b, and then into the reservoir H, or it maybe conducted through pipes to any desired place. What I claim as my invention, and desire to secure by Letters Patent, is- The-stationary zigzageshaped cooling-chamber A, with the movablezigzag cooling-chamber A, provided with a cross-bar, d, at top and feet at d at bottom, in combination with the side plates, G G, suitable end packing, and

, bolts l 1, arranged and constructed to operatein the mannerand for the purpose described.

BRUNO MULLER.

Witnesses OTTO SACK, HERM. LEITERT. 

